Pack-annealing bed



Sept 1943- E. c. PETERSON 11m; 2,328,923

PACK-ANNEALING BED 2 Sheets-Sheet 1 Fiied Sept. 2, 1941 Sept. 7, 1943- E. c PETERSON ETAL PACKQ-ANNEALING BED File d Sept. 2, 1941 V 2 Sheets-Sheet 2 -re ee the' pointer di j Th t iiv and is operate Shy-any lever ll-plunger is 51vn a in MTli fl '25 ai 2 surfaces of 'd ogs Edli'einabout the angular W b O 25 ja'le shown in Figure. Dogs 25 ew- 11 suited for "Whenth js artig d is r ek 7 Wise I direction in"Figu're"l"the"shape will be 'cari Both the Fiske et al. Patent 1,954,123 (Figure l) and the Fiske patent above (Figure 9), have recognized the overlapping of the flats at the of the flats througho-ut whatever portion of the front endrof' the bed results in diiferential annealing'of the flats themselves, the Width ofthe flats annealing more fully wherethefiats aregheld f.

.close together at the bottomirandiprogressively -:cooling more rapidly toward the upper red'ges'pf the flats as. the flats diverge upon the bed'. e

Our invention contemplates;protecting, against, 1

in contact or substantially in contact throughout pthe e'ntirelengthof the-bed, holding them together either by sloping them so they lean lupw y and. rearwa d or by p rrihggiretard *tio'n ,to'the upper cn 'ges "oij h p ek. s t a jnfeither eve ttheyqo ot .ialljfrorw r i untilthey scha rge and fall over or are pul d ver e.

ture supported upon a fixedfir'ame thelusual plurality of motorsfl'l', feedrolls l2, and bearings .13, spa ed etin a sialo el fi. the i rolled stock han cl, formi'n le conveyor 1 n hwise toward the obs'erv enin' these guresuntiljth'e shapes in turn reach the-*pbsiti'o'nfat whichgtheyf n are to be. transferred from the lead-in "conveyor toward thebars "of the carry over section.

v One shape, a flat M is shoitzn uponthe run ijn nv o n i s. e d-amenm ster 01 T by the kick-ofi'arm I 'of units. The arm'is carried' jhy-;.

oted atllii to the lever, and motor not Shown.

wihg'sih horizontal -planesand carries shapes to theleft in Figures 1 and Z, free from the run-in conveyor; The shapes in turn are thus 'slid along-"a-fixed receiving apr'on 2 I sloping downwardly ime, and I'i'otche'd at} 3. "r- The not'ch'receives the sectionfs and holds them intermediatelyw a In Figure 1 shapes are foarried'from the notch -23 bycilog 25. ordog .26 mounted'uplor'i rocker .shaft 24;. :Dogslof'the general :typeof. 26appear in the jointlpa'tem a ve .Number 1;954,12 3;-. .in this. patent they cQ peI-a t t a tilting bed not shown in Fignr 1 4 The shaft'24 is supported froin the flffilllfisitiillc- I time by ne' ti n ith d esope ete t rou i o e in in th med-Amer re. s im ed; n w 8 and m m 1 a o t t he btb m an native and are notiu'sed "at-the .sa The' s are" 24 leigtendin'gfth'e n11 bedisrockedb'y l positions in Which surfac use to f transfer shape of" any character. When pack-ianfiailinglis intended u tefc bkide we shaft l is rnounted in 'suitable liitedbearing both of'these objections by 'maihtai'nifigthe irate .bed causing back to their original positions.

From any position the shape is carried to the left in Fig ure 1 beyond the surface 36 by pusher heads. 31 upon'pusl en'bars e'a -s'othat the shape slides down the sloping surface .39 and glands upon the carry-over conveyor at the leftof the figure. The pusher bars, spaced at intervals I 1 --a1ong the length of the mill, carry racks lfl operi @til'ig Within fixed guides 43 I Tl 1e ..ra.cks 4 0 are engaged by pinions 42 carried 1 :by-shaft Min-bearings M. Th shait is turned inither of opposite directions by any suitable motor notshown. With counter-clockwise moveiiient of'thesh'a'ft in the illustration, the racks, pusher'ibars andpushel heads areshifted to the left tocarrythe shapes toward thelei 't ends of the surface 36; "sofas to start the shapes, one at a time, falling off the packbedbeyond th'e'corner 46 and l'anding. 'up0n"the carry overfconveyor at 1 It will be noted; that, whenfnot in "tisejth e 'pusher he'ads: lieout of line of travel of the shapes as they passlfrion l the run-inconveyor to In Figure 2 the tableis intended to tilt fro'r n V n a i i s ipet i e id a sldfi wm h. 'will "cause feeding downwardly of shapes'vvhich "are not intended t o b e-pack annaled. 1

All shapes WhichZare ncit intended for "packe annealing are carried -by dogs 25 "about the -i eared surface 'es fr m5hete jzs'j name there after slid 'downwardly upon methane-es 36f i n the'gtilted position of the range -seen iri dotand "daShtin' Figure'Z; I P Thetilting of the-table in igure "2-'i s no.t" new, nor is the mechanism by Whidhithitiltirig' is effected; however it is new to lift the tableto I an; upwardly tilted position" or to constructa table where the upper surface ofthetable-is 'approxh 'm'at ely'horizontal} The table is tilted byrnounting' it iiponbearhs 48 and tilting the beamsfby. 'craiik ar'iris 49, straps 50 and. pitmarlshl consented Withflthe beamsb? pivot pins 52 an eyes 53 in *rods 54,. -The lever arms are thrown by turnifigf'shaftshfi in cla',m"ps 56, subsequently tightened. "The strap 'whichhdjllslfmeht Of the height of the pack bed.

maybe varied. .i 'Ihe' objectionable overlappin .of "flatsQ one over the topcfanother' in thefexistingart, ex "ernplified in Figure 3, is inad'eiworse' insorne gcasesby the fact'that the fiats are pack-'anhea'le'd in positions with their widths unstable 'or decid- 1 edly sloping upwardly" and iorwardlyf'which is nothel'ped by the yielding i'retardation "-of'the ,pack ,at thejlower forward. face of .theipack. Both-the direction of the slope of the individual 'flats and the yielding lower ed qretardation as 1 distinguished from yielding "top retardatign'contr but i af w d d w ardiu i eofih et e 9 h i i flats :fia .eqmpe ie With. their lower edgesfuponith e pack eannealing the laterflats tofall upon preceding yieldingly'alongtheir upper rear' eagsjhy" latches angle of theflat -;go'es the very desirable resilient support of the i the front flat so thatthe of the pack is 31 The latch faces are ward and away from the these relieved lower parts 1 latch arm. The spring as i 61 ivoted to arm 66' at 68 and pressing against 75 edge of each flat upon a surface which makes a the upper; end 69,of: a sleeve [0 through which non-skid angle with the lower part of the flat.

With a substantially horizontal supporting surface, ample upward and rearward slopeof the There isl thus a relation between the "plane of the bed with respect to the perpendicular'andthe with the bed. fiAlongwiwith this upperfront edge of the front flat; most timpor tant when appliedprogressively during the growing size of the pack and then subsequently during the working of the pack, when flats are applied at the back'and coincidentally the frontfiats are wdroppedand turnedduring-v-their fall.

v a -to keep. it fromfalling, can be had without having the flat skidforward at its lower edge.

An importantthing is thatjlthe upper part of i the flat at the front of before it reaches the front end Qf the LpackJ Though the supporting The flats must besupported against turnfront. it

j'When the direction of turning' during fall is uniform danger of overlapping of one flat upon another is reduced and theextent of overlapping is also reduced. This character oiturning movethe flats "are sloped much i backwardly and upwardly as they reach the front oflthe pack or when yielding front holding keeps ment is likely when the front upper surface of the front flat from turning forwardly until-the'lower edgestrikes the surface 39. i q i e Sliding down incline 39 or 39" tends*to turn facetowardthe rear a'gainst'the slope at 39.

i Figures 1 and 2 are alike in the latch mechanism for holding the rear flat; 59 are carried byarms run-in conveyor and are pivoted at Bl in line with Spaced latches 6 0 which extend over the perpendiculars to the upper edges of the faces of the rear flat-62. i I

away slightly, downflats at 60 so that 60" ofthe latch faces will not-rub" on the flats. The latches a r e curved below at 63 so as easily to'belifte'd by the upper cut edge of each new flat in turn fa s it is placed by the face32 ofadog 26.

Above eachj latch of ,the group along the length of thebed is located-ai stop :64 which engages successively with the topfedg e surface of one ofthe rear flats'i n turn and whi-chlirnits V the extent of normal drop of the arm.

Each latch arm (Land hence each latch is resiliently pressed downwardly in counter-clockwise direction, asillustrated, by gravity, with or without the assistance of a spring ,65 1 tending to push upwardlya crank arm 66 rigidwith the shown surrounds a ro'd it does not result a by successively placing 5 turned downwardly towards or the pack: shall [not fall forwardly while the pack is being made up "and after the pack'has been completed shall notiall jbystrap 13 pivoted at The arm,15is;secured 7 letter. can be! turned ,to different angular posithe rod extends.-

Nuts. and I2uponthezrod set the extent of compression of the spring. ,SleevefHl is carried 14 to adjusting arm 15. v

"to the shaft 16 andthe tionsby means not shown.v The height of the latch "engaging a rear iflat vrheld beneath it is 'thusfadjusted without alteringthe spring pressure by which thelatch mayibe pressed down on the top of the rearflatq'Ijhis makes the spring pressure andurange uniform, whatever the height of adjustment, i.- ie., whatever the Widths of the {flats which are being handled. I e p v v n The direction of turning is not controlling but the allied avoidanceof forward-falling of the flats upon thebed before thei'lats are ready for discharge at the front of the pack tends to cause the flatjs to drop'off, of rather" than to fall at the tops outwardly and downwardly iljwhen the upper front of the pack is notrestrained, more slope of the faces -of ;the

flats is neededthanfwithytop front'holding qwheniitisydesired to givebut little slope 'to they flats and the flats consequently approach a vertical position instead of sloping decidedly upwardly and rearwardly'," means are shown which can be used with any flat slope by which thesupper front face of the forward flat of the pack may be restrained against moving forwardly fartherthan is requiredby' the successive placings of additionalflats at the back of the pack.\,

The extent pack is relieved of a the back is determined by the point-at which a front flat ceases to find support at thebottom and slides down the forward 39' at the end' of what has been 7 building up of the pack andwhen the packis 19 or the forwardgflat.

described as the straight portion of y the bed or or falls outwardly at the top. 1 e v V r" d outof the way when not in: use to some position exemplified by' thedotted lines in Figure 1.

In FiguresZa, 2b and :2c,thelatch arm shown is intended to be of the same character asthe arm 69 .in Figures 1 and 2 and thelatch andapproach curve also are much as in Flgures l and 2. The end; of the arm Figures 2a,' 2b, or llQFigureZc, for bars and 18 which rest, 18 and The longerbars' 1'8 not only will vno longer reach butengage the upper front edges of the flats during the remainder of the full. Obviouslymore thantwo setsof bars canbe used if desired. Any weight. can be giventhe r Which-is needed tocarry out therequired function. t v i. n x

The longer bars rest upon the upperfront edge of each flat inturn and follow it downslightly as it falls until stopped by the upper rear edge of the new front flat., V v v v v v i a The extent to which the bars E8 follow the fall ing frontflat down depends upon the; extent by which previously theyhadi cleared the upper the forward bed edge of forward movement before; the

front flat to make up for BDcarries pivotal support 11,

18" upon the upper ed e The bars 18 are short and are intended for use in building up the pack, restingiupon the front upper edge of each flat inturn'until the forward extent ofxthe flats is suflicient for the longer bars l8to be used; for the same purpose. take over restraint against theifront flats falling forward at theipoint where the shorter bars front edge of the next tofthe front flat, and

this in turn depends in part uponZthe-height of the 'pivot point about which: the bars -l8- swing. For this reason lifting the point 80 at which the 7. bars are piv'oted in Figure Za'tO the position 89" (Figure Zc) slightly increases the dis'tance-to which the-bars will swing, while still in engagefment with the upper front edge of the front fiat l before their engagement with. it is-broken. f

' The bars 78 and T8 swing about the axisof pin 8| Figure 2b)supported in'lu'g 82." The barsare held in place bycotters and when not in use these bars are folded back "as seen in upon any s upports 34' carried Figure 2a, resting bythe arm 60.

. As the front fla d op its lower edgeengages the surface 39 and is divertedoutwardlygwhile its upper edge is still prevented from-moving outwardly'as long asthe'bar'ls rests uponthe edge ofthe outer flat and untilothe weight of the bar is takenup by the next to the outerflat.

- In operation, ifthe flats be sloped enough so as reliably to lean backward throughout thepack (notwithstanding the c ompression attheir lower edges due'to friction) but not to skid; noprovisionis required -to prevent them from falling down on the bed andQfor the-same reason they. will :not fall down forward at the point of discharge. It not, the'bars hold the uppenedges I additionally or solely, and the bars prevent the upper parts from turning forward about the. lowerpartsdurin-g' the beginning of their falling movement. Inthe meantime, if the bars drop,

the sloping surfaces 39 divert the lower edges of the flats forward,' starting the lower edges turning forward about theuppere'dges and this turning movement is continued, because of conbuilding up of. a pack upon'a packnannealing bed in which the flats are delivered. by a run-in conveyor and operatingit asa .pack which consists in mounting the flats successively on the bed, from the rear, sloping upwardly and rearwardly, in supporting them from a point back of 'the'run-in conveyor, at .the rear at the upper edge'of the last flatjagainst falling rearwardly,

and 'yieldingly retarding the upper edge-ofthe front. flat against falling forwardlyyas the front flat advances from the rear-to thefront of the-bed, until the pack shall haveibeen built up,

continuingthe retardation of the upper part 'of the front flat While successively dropping the frontflats from the front edge of the bed by reason of moving the pack-forwardly beyondtthe front end of-the-bed. as flats are inserted at the rear, and in guiding the bottom of each front flat outwardly as it fallswhile maintaining the same yielding. restraint upon the upper front surface of the flata a v v H 4. In a pack-annealing system having .a runin conveyor, a pack-annealing bed upon which tinued engagement with the surface 39, even after the flats have fallen below the point-"at which the'bars positively engage theupper edges andprevent them from movingforwardj ",With the extremely short lift of v thelatch at the rear required to permit a new rear flat to be I p'laced no appreciable longitudinal movement is given-the holding bars during their movement.

Having thus described our-inventionwhat we claim as new and'desire to secure by Letters Patent is: it

a The method or handling flats during the building up of a pack on a pack-annealingbed in which the flats are-delivered by arun-in confve'yor, which consists in-mounting the'flats one at 'a time at the back of the bed, sloping up- '{wardly and rearwardly, in supporting themfrom a'point back of the run-in conveyor, at the upper I edge of the .last' flat,

against falling rearwardly,

and in supporting the upper edge of the front flat progressively against falling forwardlyuas 'ithe pack buildsupan'd thus maintaining the upward and rearward slope.

' :2. The method of handling flats during'the fbuilding up of a pack upon a .packannealing'bed in which the flats aredelivered by a run-in conveyor which consists in mounting the flats successively on. the bed,ifrom the rear, sloping upwardly andv rearwardly, in supporting them from apointback'of the run-in conveyor, at the rear at .the upper edge of the lastflat, against falling'rearwardly, and yieldingly retardingjthe upper edge Eof the front flat, against falling forwardly and thus maintainin the upward .and

rearward slope, as the front flat advances-from the rear .to the front of the:bed, until the .pack shallhavebeen built up.

" s. The method or. handling: flag. during the forwardly from a point back a pack is. to be started, means for delivering flats at the back of the bed successively on.edgeythe *pack comprising flats sloping upwardly andrearwardly, means for supporting'the successive rear flats at the-upper parts of their rear surfaces from a point back of, the run-in conveyor and means adapted. toengageand. retard the upper front of the growing pack, effective throughout the greater part of the width of ,the'packbeing i built.

5. Ina pack-annealing system having a runin conveyor, a pack bed having an annealing pack of flats on edge thereon, a rear support for the upper. part of the rear fiat from a point back of the run-in, conveyor, permitting, placing of successive rear flats, andyielding means mounted I .upon but movable with respect'to the rear support pressing the upper front partof the-front flat rearwardly andv downwardly against forward movement during the building up of the, pack, comprising drag bars progressively engaging the flats at different stages in the build-up of the pack at the back.

6. Ina pack-annealing system having a run-in conveyor, an approximately horizontal bed support adapted to receive a pack to be annealed,

a pivoted retarder adapted toengage the. upper front of the pack during the earlier part of building up the pack, asecond pivoted retarder pack is being assembled and a support common to the latch and to the retarding means and reaching forwardly from a point back of the run-in conveyor.

8. A pack annealing bed, means for. delivering flats to the bed on edge, sloping upwardly and "rearwardly, a yieldable latchiadapted to engage in turn the upper rear, of each flat, retarding means engaging the upper front of the front flat of the pack, while the earlier part of thepack isbeingyassembledga support for the retarding means and additional'retarding meansmounted of the run-in oonupon the samesupport and adaptedto engage the l upper front of the front flat ofthe pack during the assemblage of the, later part-of thepack.

9. In a pack annealing system having a bed,

a run-in conveyor andmeans "for delivering a position sloping upwardly and rearwardly,v a latch adapted to engage the upper rear of the flat and an armcarrying the latchand'supported in:the rear of theconveyor andreaching overit, one of thepartsjthe latch or the arm being yieldable to permit the flats to be forced pastthe V latch, one byone tolatching position.

flat from the conveyor uponthebed on edgein I latch yieldable in one direction adapted to engage the upper rear of the 'flat, an arm carrying the latch and supported in the rear of the con veyor and reaching over it and means carried of the pack during building up of the pack.

therefrom, an apron sloping downwardly; from the "rear of the bed, ,on fedge', sloping upwardly and rearwardly, a latch arm movably mounted back of the run-in conveyor, reaching over it,

the flats successively at i f as they are delivered;

their upper ,rear' edges position sloping upwardly and irearwardly, ;a latch yieldable in one-direction adapted toengage the upper rearofthe flat an arm'carrying the {flat from the conveyor upon the bed on ,edge in 10. In apack annealing system havinga bed, ,a run-in conveyor and means for delivering a and a latch upon the" arm which latch engages i 12. In a pack annealingsystem having a'bed, a run-incbnveyor and means for delivering a flat ,from the conveyor upon the bedoniedgein cessive rear flats and supported at the rear, oi

the runein conveyor to reach over the run-in. conveyor and the delivery means and means form adjusting the height of the latch at the flats in agreement with the widths of the flats.

;15. In a pack annealing system, a run-in conveyor, kick-off means for removing a flat laterally therefrom, anapron sloping downwardly from the conveyor, a pack bed, means for delivering a flat from the apron to the bed in posif tion at the rear of the bed, an edge, sloping up- 5. position sloping upwardly and *rear'wardly, a

means for the lever including a spring through i the bending of which the latch is given a resil- 1 by the arm forretarding the upper front flat i '11. Inapack annealing system, a run-in con- A 1 veyor, kick-oif means for removing a flat laterally the conveyor, a pack bed, means for delivering aflat from the apron to the bed in position at wardly and rearwardly, a latch arm movably l mounted back of the run-in conveyor, reaching over it, a latch upon the arm which latch engages the flats successively at their upper rear edges asthey are delivered, a pivot for the arm, a

secondarm and connections forming a bell crank lever with the first arm and operating ient capacity to yield upwardly.

16. In a pack annealing system, a run-in conveyor, kick-off means for removing a flat laterjally therefrom, an apron sloping downwardly from the conveyor, a pack bed, means fordeliv- I eringa flat from the apron to, the bed in position at therearofthe bed, on edge, sloping up- ,wardly and rearwardly,ya latch arm movably mountedback of the run-in conveyor, reaching over it, a, latch, upon the arm which latch engages the flatssuccessively at their'upper rear l edges asthey are delivered, a pivot for the arm,

a second arm and connections forming a bell crankplever with the-first arm and operating means for, the'leverincluding a shaft, an operate ing arm on the shaft, a rod connected with the lever, a spring carried by the rod, and connections betweenthe; rodand the operating arm permitting variant compression of the spring and latch and supportedin the rearof the conveyor and reaching over it and means permitting movement ofthe, arm upwardly and away from th v pack to take the armout of theway.

he latch, movably supported in therea'r of the he arm for retarding the upper "front flat of 1,3. a pack annealing system having-a bed, a run-iniconveyor and means forydelivering a flat from the jconveyor; upon the bed on edge in position sloping "upwardlyi andk rearwardlyy a latch yieldable in bl edirection adapted to en-- gage the upper rear 'of the flat, an arm carrying,

conveyor and reaching ovenit, means carried by the {pack during building .up" ct the" pack, the, upport permitting movement of the arm upj, wardly and away fromithe pack to take thearm providing additionalrcompressionof the spring when placing of a flat lifts the latchand arm.

l7, 'III'B. pack 'annealingsystem, a run-in conveyor, kick-off means for removing a flat laterally therefrom, an apron sloping downwardly ,livering aflat from the apron to thebed' in posi- .tionat-the rear of the bed, on edge,sloping up-,

from the conveyor, a pack bed, means for dewardly and, rearwardly, a latch arm movably mounted back of the run-inconveylor, reaching ,overit, a latch'upon the arm, which latch enlgag es the flats successively at theirupperrear edges as, they are delivered, a pivot for the arm,

a second arm, and connections forming a bellcrank lever with the first -?arm, a threaded rod connected with thelever, a sleeve about the rod,

a stop uponthe rod, a spring between the stop and the upperendof the sleeve, 'a nutengaging v the thread and by its'position determining the normal compression of the'spring and means for operating the sleeve to lift the arm andto 1 allow it to :lower so as'to adapt the latch height to the widths ofthe flats handled.

EDWARD, c. PETERSON. 1 EDWARD 'r. ETERSON, 

